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Decay of vortex rings in a rotating fluid
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Brend, M. A. and Thomas, P. J. (Peter J.) (2009) Decay of vortex rings in a rotating fluid. Physics of Fluids, Vol.21 (No.4). Article 044105. doi:10.1063/1.3117355 ISSN 1070-6631.
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Official URL: http://dx.doi.org/10.1063/1.3117355
Abstract
Vortex rings propagating through a rotating fluid, along the axis of rotation, are studied experimentally. The length, x(d), traveled by the rings until they have completely decayed is measured. In agreement with theoretical arguments based on the Taylor-Proudman theorem it is observed that the value of x(d) decreases with decreasing Rossby number, Ro. For the parameter range investigated here we determine an overall, global trend for the scaling of the mean decay length that can be roughly summarized by the expression (x(d)/D)=4.77 Ro(1.06), where D is the diameter of the generator nozzle used to produce the vortex rings.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery Q Science > QC Physics |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Journal or Publication Title: | Physics of Fluids | ||||
| Publisher: | American Institute of Physics | ||||
| ISSN: | 1070-6631 | ||||
| Official Date: | April 2009 | ||||
| Dates: |
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| Volume: | Vol.21 | ||||
| Number: | No.4 | ||||
| Number of Pages: | 4 | ||||
| Page Range: | Article 044105 | ||||
| DOI: | 10.1063/1.3117355 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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